Cooling Off SOFIA’S TelescopeTechnicians introduce liquid nitrogen to an instrument linked to SOFIA’s telescope. Detection of infrared wavelengths is greatly enhanced by removing as much heat from the telescope as possible.Image Credit: NASA/Carla Thomas Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/amf-ed13-0220-108/Copy URL to clipboard> DownloadShareTakenJuly 15, 2013ProducerAFRCImage CreditNASA/Carla ThomasSize1920x1280pxPIA NumberED13-0220-108